Cormac_Wibberley_and_Marianne_Wibberley
Cormac and Marianne Wibberley
American husband-and-wife screenwriter duo
Cormac Wibberley[1] and Marianne Wibberley[2] (also known as The Wibberleys) are an American husband and wife screenwriting team.[3] They have been writing together since 1991, and made their first screenplay sale in 1993. [citation needed] Cormac's father was Leonard Wibberley, creator of the fictional Duchy of Grand Fenwick, and author of The Mouse That Roared, among other books.